Wouldnt you wire them to the LED indicators? So when your PSP is on, the L+R led's would be on too?
I was thinking the other day of swapping the blue LEDS out of my wii remote into my PS3 pad and the red PS3 pad ones into my second wiiremote
Red and blue wii remotes (for P1 and P2) and a custom blue PS3 pad for the heck of it.
But I'm unsure what solder/wire to use, if any.
I will be following this thread to hopefully pick up some pointers